I am a mechanical engineer in a aerospace group working bearings, seals
& lube. Ceramic bearings have there place in the world. High speed
applications (machine tools) were the low mass of the rolling elements
relates to lower centrifugal loads, and lower loads on the races.
Steel bearings (9310) are perfectly adequate for bicycle use. Ceramics
have no advantage except high cost.
BTW, steel is a darn good frame material too...it just doesn't "market"
well in today's world. How many things are labled "titanium" these
days which don't have a speck of Ti in them?
Cycling Equipment · Public discussion
ceramic bearings
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- Cycling Equipment
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- 27 September 2006
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- 27 September 2006
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- Mr. Les
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Mr. Les said:
I am a mechanical engineer in a aerospace group working bearings, seals
& lube. Ceramic bearings have there[sic] place in the world. High speed
applications (machine tools) were the low mass of the rolling elements
relates to lower centrifugal loads, and lower loads on the races.
Steel bearings (9310) are perfectly adequate for bicycle use. Ceramics
have no advantage except high cost.
BTW, steel is a darn good frame material too...it just doesn't "market"
well in today's world. How many things are labled "titanium" these
days which don't have a speck of Ti in them?My razor.
--
Ted Bennett -
Mr. Les said:
I am a mechanical engineer in a aerospace group working bearings, seals
& lube. Ceramic bearings have there place in the world. High speed
applications (machine tools) were the low mass of the rolling elements
relates to lower centrifugal loads, and lower loads on the races.
Steel bearings (9310) are perfectly adequate for bicycle use. Ceramics
have no advantage except high cost.
BTW, steel is a darn good frame material too...it just doesn't "market"
well in today's world. How many things are labled "titanium" these
days which don't have a speck of Ti in them?Only the ones that aren't somehow "Turbo."
Ron
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